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Thoracic outlet syndrome (TOS) is a condition in which there is compression of the nerves, arteries, or veins in the superior thoracic aperture, the passageway from the lower neck to the armpit, also known as the thoracic outlet. [1] There are three main types: neurogenic, venous, and arterial. [1]
A position circle is a circle that can be measured both from a chart and from the surface of the earth for the purpose of position fixing. For the purposes of land or coastal navigation, a position circle can be generated by making a horizontal angle measurement between two landmarks using a sextant .
The radar chart is a chart and/or plot that consists of a sequence of equi-angular spokes, called radii, with each spoke representing one of the variables. The data length of a spoke is proportional to the magnitude of the variable for the data point relative to the maximum magnitude of the variable across all data points.
Authorities have confirmed that the bear responsible for attacking a Pennsylvania man had rabies. A resident of the town of Jim Thorpe was “aggressively approached” by a black adult male bear ...
Adele Snowball, a model, shared the story of her proposal and engagement rings with Business Insider. Her fiancé popped the question in Japan with a piece of toy jewelry from a vending machine.
Another name of the star which combines a Greek letter with the possessive form of its constellation's Latin name. Etymology of common name Etymology of the common name. [9] SHA Sidereal hour angle (SHA), the angular distance west of the vernal equinox. Dec. Declination, the angular distance north or south of the celestial equator. App. magnitude
Jade Collett, then 22, noticed her foot was turning outwards during a night of drinking with pals, but initially dismissed the symptoms a "twinged nerve"
The chart uses symbols to provide pilotage information about the nature and position of features useful to navigators, such as sea bed information, sea mark, and landmarks. Some symbols describe the sea bed with information such as its depth, materials as well as possible navigational hazards such as shipwrecks .